Characterization of Zn Doping in AIGaInP Epitaxy Layer Grown by MOCVD

유기금속 화학증착법을 사용한 AIGAInP층의 Zn 도우핑 농도의 특성

  • Published : 1996.09.01

Abstract

저압 유기금속 화학증착법을 사용하여 AIGaInP층의 diethylzinc의 III족 원소(AO, Ga, In)에 대한 비와 성장온도 변화에 따른 Zn(acceptor)의 첨가 농도특성을 연구하였다. Diethylzinc의 III족 원소(AI, Ga, In)비를 0.4에서 2.0까지 변화시켜 본 결과 0.85일 때 가장 높은 acceptor 농도를 가졌으며, 성장온도를 69$0^{\circ}C$에서 80$0^{\circ}C$까지 변화시킨 결과 성장온도에 대한 변화는 69$0^{\circ}C$-73$0^{\circ}C$일 때 온도가 증가함에 따라 acceptor농도는 커졌으며, 그 이상에서는 감소하였다. 또한, 성장속도가 빠를수록 높은 acceptor 농도를 가지게 되어 3.3$\mu\textrm{m}$/hr의 성장속도일 때 8x1017/㎤의 가장 높은 acceptor 농도를 얻을수 있다.

Keywords

References

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